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There are 5 clues with the answer 'PLANCKSCONSTANT'
# CLUE
1.
In physics, a photon's energy is equal to its frequency multiplied by ____
2.
Board's pressing firm about key scientific measure
3.
Middle of the piece of timber's reportedly unbroken (7,8)
4.
6.6260693 x 10^-34 joule second
5.
Fundamental number in Physics